9
5. Fractions
a. displays a menu from which
the way a fraction is shown is set
- Un/d displays a mixed number and
- n/d displays a single fraction (improper fraction) result.
and whether any given fraction is unsimplified (Man) with
showing at the
top, or in simplest terms with Auto
This lets you select to display fraction results as mixed numbers or improper
fractions.
Press the left and right arrow keys and to move the underline. To select
mixed numbers, underline U n/d and press . To select improper fractions,
underline n/d and press .
Press the down arrow
. The selection MAN AUTO is displayed.
This lets you select to manually simplify fractions (using the key), or have the
calculator automatically simplify fractions.
Press and to move the underline.
Press to exit the Fraction Menu.
b. A mixed number is entered using the button after the whole number part,
after the numerator and after the denominator, followed by , or the next part
of a calculation.
c. changes a mixed number to an improper fraction and vice versa.
d. When the calculator is in Auto mode, and
is visible, pressing simplifies
the fraction to lowest terms in one step.
e. When the calculator is in Man mode, and
is visible,
pressing simplifies the fraction to lowest terms in steps where the factor or
divisor to be used can either be entered by the user or the calculator chooses the
factor.
Pressing shows the factor that was used, and pressing it again displays the
simplified fraction. This is repeated until the
is no longer on the screen.
The calculator uses the lowest prime number available as a factor first, then moves
to the next prime factor until the fraction is fully simplified.
f. For calculations, the denominator can be from 1 to 1000. For conversions to decimals,
the denominator can be from 1 to 100,000,000.